:root {
  --ink: #121310;
  --ink-soft: #1a1b17;
  --ink-raised: #22231e;
  --paper: #f0f0e8;
  --paper-muted: #c1c2b7;
  --lime: #c8ff32;
  --lime-dark: #91c400;
  --line: rgba(240, 240, 232, 0.14);
  --line-dark: rgba(18, 19, 16, 0.17);
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.22);
  --radius-sm: 12px;
  --radius-md: 22px;
  --radius-lg: 34px;
  --max: 1440px;
  --pad: clamp(22px, 4vw, 68px);
  --font: "Arial Narrow", "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
}

body {
  margin: 0;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font);
  -webkit-font-smoothing: antialiased;
  line-height: 1.6;
  overflow-x: hidden;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image: radial-gradient(rgba(255, 255, 255, 0.035) 0.7px, transparent 0.7px);
  background-size: 7px 7px;
  content: "";
  pointer-events: none;
}

a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
button, select { cursor: pointer; }
img, svg { display: block; max-width: 100%; }
[hidden] { display: none !important; }

::selection { background: var(--lime); color: var(--ink); }

:focus-visible {
  outline: 3px solid var(--lime);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  left: 20px;
  top: 12px;
  z-index: 1000;
  padding: 10px 16px;
  border-radius: 8px;
  background: var(--lime);
  color: var(--ink);
  font-weight: 800;
  transform: translateY(-150%);
  transition: transform 180ms ease;
}

.skip-link:focus { transform: translateY(0); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  width: 100%;
  min-height: 78px;
  padding: 12px var(--pad);
  border-bottom: 1px solid var(--line);
  background: rgba(18, 19, 16, 0.88);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 13px;
  min-width: 0;
}

.brand-mark {
  display: grid;
  flex: 0 0 39px;
  height: 39px;
  place-items: center;
  border-radius: 50%;
  background: var(--lime);
  color: var(--ink);
  font-size: 18px;
  font-weight: 900;
  line-height: 1;
}

.brand-name {
  max-width: 300px;
  overflow: hidden;
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.03em;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(20px, 2.5vw, 42px);
  margin-left: auto;
  font-size: 13px;
  font-weight: 700;
}

.site-nav > a:not(.nav-cta) {
  position: relative;
  color: var(--paper-muted);
  transition: color 180ms ease;
}

.site-nav > a:not(.nav-cta)::after {
  position: absolute;
  right: 0;
  bottom: -8px;
  left: 0;
  height: 2px;
  background: var(--lime);
  content: "";
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 180ms ease;
}

.site-nav > a:hover,
.site-nav > a[aria-current="true"] { color: var(--paper); }
.site-nav > a:hover::after,
.site-nav > a[aria-current="true"]::after { transform: scaleX(1); transform-origin: left; }

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 28px;
  padding: 12px 14px 12px 18px;
  border-radius: 999px;
  background: var(--paper);
  color: var(--ink);
  transition: background 180ms ease, transform 180ms ease;
}

.nav-cta:hover { background: var(--lime); transform: translateY(-2px); }

.menu-toggle {
  display: none;
  align-items: center;
  gap: 12px;
  margin-left: auto;
  border: 0;
  background: transparent;
  color: var(--paper);
  font-size: 13px;
  font-weight: 700;
}

.menu-icon { display: grid; gap: 5px; width: 24px; }
.menu-icon i { display: block; height: 2px; background: currentColor; transition: transform 180ms ease; }

main { overflow: clip; }

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.94fr) minmax(440px, 1.06fr);
  min-height: calc(100vh - 78px);
  max-width: var(--max);
  margin: 0 auto;
  border-right: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.hero-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(80px, 10vw, 140px) var(--pad);
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 11px;
  margin: 0 0 26px;
  color: var(--paper-muted);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.16em;
}

.eyebrow::before {
  width: 29px;
  height: 2px;
  background: var(--lime);
  content: "";
}

.hero h1 {
  max-width: 720px;
  margin: 0;
  font-size: clamp(64px, 7.2vw, 118px);
  font-weight: 900;
  letter-spacing: -0.075em;
  line-height: 0.91;
}

.hero h1 span { color: var(--lime); }

.hero-lead {
  max-width: 610px;
  margin: 38px 0 0;
  color: var(--paper-muted);
  font-size: clamp(15px, 1.3vw, 18px);
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 32px;
  margin-top: 42px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  min-height: 52px;
  padding: 13px 17px 13px 22px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 800;
  line-height: 1;
  transition: transform 180ms ease, background 180ms ease, color 180ms ease;
}

.button:hover { transform: translateY(-3px); }
.button-primary { background: var(--lime); color: var(--ink); }
.button-primary:hover { background: #d8ff70; }
.button-quiet { border-color: var(--line); background: transparent; color: var(--paper); }
.button-quiet:hover { border-color: var(--paper-muted); }

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  width: fit-content;
  border-bottom: 1px solid currentColor;
  color: var(--paper);
  font-size: 14px;
  font-weight: 800;
  transition: color 180ms ease, gap 180ms ease;
}

.text-link:hover { gap: 16px; color: var(--lime); }

.hero-stage {
  position: relative;
  display: grid;
  min-height: 620px;
  place-items: center;
  overflow: hidden;
  border-left: 1px solid var(--line);
  background: var(--lime);
  color: var(--ink);
}

.stage-grid {
  position: absolute;
  inset: 0;
  opacity: 0.16;
  background-image: linear-gradient(var(--ink) 1px, transparent 1px), linear-gradient(90deg, var(--ink) 1px, transparent 1px);
  background-size: 54px 54px;
}

.hero-stage::before {
  position: absolute;
  width: 66%;
  aspect-ratio: 1;
  border: 1px solid rgba(18, 19, 16, 0.22);
  border-radius: 50%;
  content: "";
}

.hero-stage::after {
  position: absolute;
  width: 42%;
  aspect-ratio: 1;
  border: 1px dashed rgba(18, 19, 16, 0.3);
  border-radius: 50%;
  content: "";
}

.signal {
  position: absolute;
  width: 10px;
  height: 10px;
  border: 2px solid var(--lime);
  border-radius: 50%;
  background: var(--ink);
  box-shadow: 0 0 0 7px rgba(18, 19, 16, 0.14);
}

.signal-one { top: 22%; left: 17%; }
.signal-two { right: 14%; bottom: 22%; }

.commerce-card {
  position: relative;
  z-index: 2;
  width: min(72%, 520px);
  border: 1px solid rgba(240, 240, 232, 0.12);
  border-radius: var(--radius-md);
  background: var(--ink-soft);
  color: var(--paper);
  box-shadow: 0 36px 70px rgba(24, 31, 7, 0.3);
  transform: rotate(-3deg);
}

.card-topline {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 17px 19px;
  border-bottom: 1px solid var(--line);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.status-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--lime); }
.card-meta { margin-left: auto; color: #8c8e82; font-weight: 500; }

.metric-block { padding: 30px 26px 25px; }
.metric-label { display: block; margin-bottom: 8px; color: #96998d; font-size: 11px; }
.metric-block strong { font-size: clamp(20px, 2.3vw, 30px); letter-spacing: -0.04em; }

.pulse-line {
  position: relative;
  height: 52px;
  margin-top: 28px;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, transparent, rgba(200, 255, 50, 0.04));
}

.pulse-line::before {
  position: absolute;
  inset: 7px 0 7px;
  background: var(--lime);
  clip-path: polygon(0 82%, 12% 67%, 24% 72%, 36% 45%, 48% 60%, 60% 27%, 72% 50%, 84% 22%, 100% 5%, 100% 10%, 84% 27%, 72% 55%, 60% 32%, 48% 65%, 36% 50%, 24% 77%, 12% 72%, 0 87%);
  content: "";
}

.pulse-line i { position: absolute; right: 1%; top: 5px; width: 7px; height: 7px; border-radius: 50%; background: var(--lime); box-shadow: 0 0 0 6px rgba(200, 255, 50, 0.12); }

.card-columns { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--line); }
.card-columns > div { padding: 18px 24px; }
.card-columns > div + div { border-left: 1px solid var(--line); }
.card-columns span, .card-columns strong { display: block; }
.card-columns span { color: #8c8e82; font-size: 10px; }
.card-columns strong { margin-top: 4px; font-size: 13px; }

.float-card {
  position: absolute;
  z-index: 3;
  border-radius: 15px;
  background: var(--paper);
  box-shadow: var(--shadow);
  font-size: 11px;
  font-weight: 800;
}

.category-card { top: 20%; right: 7%; width: 145px; padding: 15px; transform: rotate(4deg); }
.mini-bars { display: flex; align-items: end; gap: 5px; height: 42px; margin-top: 12px; }
.mini-bars i { flex: 1; border-radius: 3px 3px 0 0; background: var(--ink); }
.mini-bars i:nth-child(1) { height: 44%; }
.mini-bars i:nth-child(2) { height: 70%; }
.mini-bars i:nth-child(3) { height: 55%; }
.mini-bars i:nth-child(4) { height: 92%; background: var(--lime-dark); }

.order-card { bottom: 22%; left: 7%; display: flex; align-items: center; gap: 11px; padding: 12px 16px; transform: rotate(2deg); }
.order-check { display: grid; width: 29px; height: 29px; place-items: center; border-radius: 50%; background: var(--ink); color: var(--lime); }
.order-card small, .order-card b { display: block; }
.order-card small { color: #68695f; font-size: 9px; font-weight: 500; }

.stage-caption { position: absolute; right: 28px; bottom: 23px; left: 28px; display: flex; align-items: center; justify-content: space-between; border-top: 1px solid rgba(18, 19, 16, 0.25); padding-top: 13px; font-size: 11px; font-weight: 800; letter-spacing: 0.05em; }
.stage-caption span { font-size: 10px; }

.proof-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  max-width: var(--max);
  margin: 0 auto;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.proof-strip > div { display: flex; align-items: center; gap: 19px; min-height: 118px; padding: 22px var(--pad); }
.proof-strip > div + div { border-left: 1px solid var(--line); }
.proof-number { display: grid; flex: 0 0 47px; height: 47px; place-items: center; border: 1px solid var(--line); border-radius: 50%; color: var(--lime); font-size: 18px; font-weight: 900; }
.proof-strip p { margin: 0; color: var(--paper-muted); font-size: 12px; }
.proof-strip strong { display: block; margin-bottom: 2px; color: var(--paper); font-size: 14px; }

.section-pad { max-width: var(--max); margin: 0 auto; padding: clamp(90px, 11vw, 170px) var(--pad); }
.section-intro h2,
.method-heading h2,
.fulfillment-copy h2,
.principles-title h2,
.cooperation h2 { margin: 0; font-size: clamp(42px, 5.7vw, 78px); font-weight: 900; letter-spacing: -0.06em; line-height: 1.03; }

.capabilities { display: grid; grid-template-columns: minmax(300px, 0.74fr) minmax(0, 1.26fr); gap: clamp(50px, 9vw, 140px); border-right: 1px solid var(--line); border-left: 1px solid var(--line); }
.section-intro { align-self: start; position: sticky; top: 130px; }
.section-intro > p:not(.eyebrow) { max-width: 430px; margin: 30px 0; color: var(--paper-muted); font-size: 15px; }
.capability-list { display: grid; gap: 18px; }

.capability-card {
  position: relative;
  min-height: 345px;
  padding: clamp(28px, 4vw, 48px);
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--ink-soft);
  box-shadow: 0 18px 44px rgba(0, 0, 0, 0.12);
  transition: border-color 200ms ease, transform 200ms ease;
}

.capability-card:hover { border-color: rgba(200, 255, 50, 0.42); transform: translateY(-5px); }
.capability-icon { display: grid; width: 58px; height: 58px; margin-bottom: 45px; place-items: center; border-radius: 50%; background: var(--lime); color: var(--ink); }
.capability-icon svg { width: 29px; fill: none; stroke: currentColor; stroke-width: 1.6; }
.card-index { position: absolute; top: 27px; right: 31px; color: #77796f; font-size: 10px; font-weight: 800; letter-spacing: 0.14em; }
.capability-card h3 { margin: 0 0 13px; font-size: clamp(25px, 3vw, 38px); letter-spacing: -0.04em; }
.capability-card p { max-width: 540px; margin: 0; color: var(--paper-muted); font-size: 14px; }
.capability-card ul { display: flex; flex-wrap: wrap; gap: 8px; margin: 27px 0 0; padding: 0; list-style: none; }
.capability-card li { padding: 7px 11px; border: 1px solid var(--line); border-radius: 999px; color: #d4d5cc; font-size: 11px; }

.method {
  max-width: none;
  background: var(--paper);
  color: var(--ink);
}

.method > * { max-width: calc(var(--max) - (var(--pad) * 2)); margin-right: auto; margin-left: auto; }
.method .eyebrow { color: #707269; }
.method-heading { display: grid; grid-template-columns: minmax(0, 1fr) minmax(280px, 0.45fr); gap: 80px; align-items: end; }
.method-heading > p { margin: 0 0 6px; color: #5c5e56; font-size: 14px; }
.method-console { margin-top: 70px; overflow: hidden; border: 1px solid var(--line-dark); border-radius: var(--radius-lg); background: #dedfd5; box-shadow: 0 30px 70px rgba(18, 19, 16, 0.13); }

.tab-list { display: grid; grid-template-columns: repeat(3, 1fr); border-bottom: 1px solid var(--line-dark); background: #e8e9e0; }
.tab-list button { display: flex; align-items: center; gap: 14px; min-height: 70px; padding: 16px 24px; border: 0; border-right: 1px solid var(--line-dark); background: transparent; color: #606259; font-size: 13px; font-weight: 800; text-align: left; }
.tab-list button:last-child { border-right: 0; }
.tab-list button span { font-size: 10px; letter-spacing: 0.14em; }
.tab-list button[aria-selected="true"] { background: var(--ink); color: var(--lime); }

.method-panel { display: grid; grid-template-columns: 1fr 0.78fr; min-height: 480px; }
.panel-copy { display: flex; flex-direction: column; justify-content: center; padding: clamp(38px, 6vw, 78px); }
.panel-kicker { margin: 0 0 18px; color: #686a61; font-size: 11px; font-weight: 800; letter-spacing: 0.12em; }
.panel-copy h3 { max-width: 670px; margin: 0; font-size: clamp(32px, 4.7vw, 62px); letter-spacing: -0.06em; line-height: 1.05; }
.panel-copy > p:not(.panel-kicker) { max-width: 590px; margin: 28px 0 0; color: #5c5e56; font-size: 14px; }
.logic-row { display: flex; align-items: center; gap: 14px; margin-top: 38px; color: #3f413b; font-size: 11px; font-weight: 800; }
.logic-row i { width: 44px; height: 1px; background: #a2a49a; }

.panel-visual { position: relative; display: grid; min-height: 480px; place-items: center; overflow: hidden; border-left: 1px solid var(--line-dark); background: var(--lime); }
.radar-ring { position: absolute; border: 1px solid rgba(18, 19, 16, 0.22); border-radius: 50%; }
.ring-one { width: 65%; aspect-ratio: 1; }
.ring-two { width: 38%; aspect-ratio: 1; border-style: dashed; }
.radar-core { z-index: 2; display: grid; width: 106px; aspect-ratio: 1; place-items: center; border-radius: 50%; background: var(--ink); color: var(--paper); font-size: 13px; font-weight: 800; box-shadow: 0 14px 30px rgba(18, 19, 16, 0.24); }
.radar-label { position: absolute; padding: 7px 12px; border: 1px solid rgba(18, 19, 16, 0.28); border-radius: 999px; background: rgba(240, 240, 232, 0.65); font-size: 10px; font-weight: 800; }
.label-a { top: 16%; left: 50%; transform: translateX(-50%); }
.label-b { right: 11%; bottom: 25%; }
.label-c { bottom: 25%; left: 11%; }

.content-stack { display: flex; flex-direction: column; justify-content: center; gap: 12px; padding: 40px; }
.content-stack > div { width: min(82%, 330px); padding: 19px 22px; border-radius: 12px; background: var(--ink); color: var(--paper); box-shadow: 8px 8px 0 rgba(18, 19, 16, 0.16); }
.content-stack > div:nth-child(2) { margin-left: 12%; }
.content-stack > div:nth-child(3) { margin-left: 22%; }
.content-stack small, .content-stack strong { display: block; }
.content-stack small { margin-bottom: 3px; color: var(--lime); font-size: 9px; }
.content-stack strong { font-size: 18px; }

.review-chart { padding: 50px; place-items: stretch; }
.chart-bars { display: flex; align-items: end; gap: 8px; min-height: 280px; border-bottom: 2px solid var(--ink); }
.chart-bars i { flex: 1; min-height: 20%; background: var(--ink); }
.chart-bars i:nth-child(2) { height: 34%; }
.chart-bars i:nth-child(3) { height: 48%; }
.chart-bars i:nth-child(4) { height: 43%; }
.chart-bars i:nth-child(5) { height: 68%; }
.chart-bars i:nth-child(6) { height: 88%; }
.review-chart > span { justify-self: end; margin-top: 14px; font-size: 11px; font-weight: 800; }

.fulfillment { display: grid; grid-template-columns: minmax(0, 1.03fr) minmax(400px, 0.97fr); gap: clamp(55px, 9vw, 140px); align-items: center; border-right: 1px solid var(--line); border-left: 1px solid var(--line); }
.fulfillment-visual { position: relative; min-height: 650px; overflow: hidden; border-radius: var(--radius-lg); background: var(--ink-soft); }
.fulfillment-visual::before { position: absolute; inset: 9%; border: 1px solid var(--line); border-radius: 50%; content: ""; }
.fulfillment-visual::after { position: absolute; right: -20%; bottom: -15%; width: 70%; aspect-ratio: 1; border-radius: 50%; background: var(--lime); content: ""; filter: blur(1px); }

.package { position: absolute; z-index: 3; width: 43%; aspect-ratio: 0.86; border: 1px solid rgba(240, 240, 232, 0.18); border-radius: 14px; }
.package-back { top: 20%; left: 20%; background: #2a2c26; transform: rotate(-14deg); }
.package-back span { position: absolute; top: 12%; right: 10%; width: 14%; aspect-ratio: 1; border: 1px solid #777a6e; border-radius: 50%; }
.package-front { top: 29%; left: 35%; padding: 9%; background: #e6e7dd; color: var(--ink); box-shadow: 0 30px 55px rgba(0,0,0,.27); transform: rotate(8deg); }
.package-front::before, .package-front::after { position: absolute; background: rgba(18,19,16,.13); content: ""; }
.package-front::before { top: 0; left: 49%; width: 1px; height: 100%; }
.package-front::after { top: 18%; left: 0; width: 100%; height: 1px; }
.package-mark { position: relative; z-index: 1; display: grid; width: 48px; aspect-ratio: 1; place-items: center; border-radius: 50%; background: var(--lime); font-size: 20px; font-weight: 900; }
.package-line { position: relative; z-index: 1; width: 70%; height: 6px; margin-top: 38%; background: var(--ink); }
.package-code { position: relative; z-index: 1; display: flex; gap: 3px; height: 37px; margin-top: 12px; }
.package-code i { width: 2px; background: var(--ink); }
.package-code i:nth-child(2), .package-code i:nth-child(5) { width: 5px; }

.route { position: absolute; z-index: 1; border: 1px dashed #56594f; border-radius: 50%; }
.route-a { top: 12%; left: 8%; width: 83%; aspect-ratio: 1.05; transform: rotate(21deg); }
.route-b { top: 27%; left: 19%; width: 60%; aspect-ratio: 1; transform: rotate(-19deg); }
.route-dot { position: absolute; z-index: 2; width: 11px; aspect-ratio: 1; border-radius: 50%; background: var(--lime); box-shadow: 0 0 0 8px rgba(200,255,50,.12); }
.dot-a { top: 14%; right: 21%; }
.dot-b { bottom: 17%; left: 20%; }

.fulfillment-copy > p:not(.eyebrow) { margin: 30px 0 42px; color: var(--paper-muted); font-size: 15px; }
.process-list { margin: 0; padding: 0; border-top: 1px solid var(--line); list-style: none; }
.process-list li { display: grid; grid-template-columns: 48px 1fr; gap: 20px; padding: 24px 0; border-bottom: 1px solid var(--line); }
.process-list > li > span { color: var(--lime); font-size: 10px; font-weight: 800; letter-spacing: 0.12em; }
.process-list strong { display: block; margin-bottom: 4px; font-size: 16px; }
.process-list p { margin: 0; color: var(--paper-muted); font-size: 12px; }

.principles { border-right: 1px solid var(--line); border-left: 1px solid var(--line); background: var(--lime); color: var(--ink); }
.principles .eyebrow { color: rgba(18,19,16,.7); }
.principles .eyebrow::before { background: var(--ink); }
.principles-title { display: grid; grid-template-columns: 0.38fr 1fr; gap: 60px; align-items: start; }
.principles-title h2 { max-width: 900px; }
.principle-grid { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 78px; border-top: 1px solid rgba(18,19,16,.3); }
.principle-grid article { min-height: 260px; padding: 32px 35px 15px 0; }
.principle-grid article + article { padding-left: 35px; border-left: 1px solid rgba(18,19,16,.3); }
.principle-grid span { display: inline-block; padding: 5px 10px; border: 1px solid rgba(18,19,16,.35); border-radius: 999px; font-size: 10px; font-weight: 800; }
.principle-grid h3 { max-width: 320px; margin: 38px 0 13px; font-size: clamp(23px, 2.6vw, 34px); letter-spacing: -0.04em; line-height: 1.15; }
.principle-grid p { max-width: 330px; margin: 0; color: rgba(18,19,16,.7); font-size: 13px; }

.cooperation { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: clamp(55px, 10vw, 150px); border-right: 1px solid var(--line); border-left: 1px solid var(--line); }
.cooperation-copy > p:not(.eyebrow) { max-width: 470px; margin: 30px 0; color: var(--paper-muted); }
.privacy-note { display: flex; align-items: center; gap: 9px; color: #929489; font-size: 11px; }
.privacy-note svg { width: 18px; fill: none; stroke: var(--lime); stroke-width: 1.5; }

.brief-form { align-self: start; padding: clamp(28px, 4vw, 50px); border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--ink-soft); box-shadow: var(--shadow); }
.brief-form label { display: grid; gap: 9px; margin-bottom: 22px; }
.brief-form label > span { color: var(--paper-muted); font-size: 11px; font-weight: 800; letter-spacing: 0.08em; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.brief-form input,
.brief-form select,
.brief-form textarea { width: 100%; border: 1px solid var(--line); border-radius: 10px; background: #11120f; color: var(--paper); outline: 0; }
.brief-form input, .brief-form select { min-height: 52px; padding: 0 15px; }
.brief-form textarea { min-height: 128px; padding: 14px 15px; resize: vertical; }
.brief-form input::placeholder, .brief-form textarea::placeholder { color: #6f7168; }
.brief-form input:focus, .brief-form select:focus, .brief-form textarea:focus { border-color: var(--lime); box-shadow: 0 0 0 3px rgba(200,255,50,.09); }
.brief-form select { color-scheme: dark; }
.form-actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 5px; }
.form-actions button { border: 0; }
.form-actions .button-quiet { border: 1px solid var(--line); }
.form-status { min-height: 24px; margin: 15px 0 0; color: var(--lime); font-size: 12px; }
.form-status.is-error { color: #ffad90; }

.brief-output { margin-top: 6px; padding: 17px; border: 1px solid rgba(200,255,50,.38); border-radius: 12px; background: rgba(200,255,50,.05); }
.brief-output > div { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.brief-output span { color: var(--lime); font-size: 10px; font-weight: 800; letter-spacing: .1em; }
.brief-output button { border: 0; border-bottom: 1px solid currentColor; background: transparent; color: var(--paper); font-size: 11px; font-weight: 800; }
.brief-output pre { margin: 0; color: var(--paper-muted); font-family: var(--font); font-size: 12px; line-height: 1.8; white-space: pre-wrap; }

.back-top { position: fixed; right: 22px; bottom: 22px; z-index: 50; display: grid; width: 44px; aspect-ratio: 1; place-items: center; border: 1px solid var(--line); border-radius: 50%; background: rgba(18,19,16,.8); color: var(--paper); backdrop-filter: blur(12px); transition: border-color 180ms ease, color 180ms ease; }
.back-top:hover { border-color: var(--lime); color: var(--lime); }

.motion-ready .reveal { opacity: 0; transform: translateY(30px); transition: opacity 650ms cubic-bezier(.22,.61,.36,1), transform 650ms cubic-bezier(.22,.61,.36,1); }
.motion-ready .reveal.is-visible { opacity: 1; transform: translateY(0); }
.motion-ready .reveal-delay-1 { transition-delay: 90ms; }
.motion-ready .reveal-delay-2 { transition-delay: 180ms; }
.motion-ready .reveal-delay-3 { transition-delay: 270ms; }

@media (max-width: 1080px) {
  .hero { grid-template-columns: 1fr 0.92fr; }
  .hero h1 { font-size: clamp(58px, 8vw, 86px); }
  .category-card { right: 3%; }
  .order-card { left: 3%; }
  .capabilities { gap: 55px; }
  .method-panel { grid-template-columns: 1.1fr .9fr; }
  .fulfillment { gap: 55px; }
  .fulfillment-visual { min-height: 560px; }
  .cooperation { gap: 55px; }
}

@media (max-width: 820px) {
  html { scroll-padding-top: 74px; }
  .site-header { min-height: 70px; }
  .brand-name { max-width: min(56vw, 270px); }
  .js .menu-toggle { display: inline-flex; }
  .site-nav { position: absolute; top: calc(100% + 1px); right: 0; left: 0; display: flex; flex-direction: column; align-items: stretch; gap: 0; padding: 10px var(--pad) 24px; border-bottom: 1px solid var(--line); background: rgba(18,19,16,.97); box-shadow: 0 22px 40px rgba(0,0,0,.24); }
  .js .site-nav { display: none; }
  .js .site-header[data-open="true"] .site-nav { display: flex; }
  .js .site-header[data-open="true"] .menu-icon i:first-child { transform: translateY(3.5px) rotate(45deg); }
  .js .site-header[data-open="true"] .menu-icon i:last-child { transform: translateY(-3.5px) rotate(-45deg); }
  .site-nav > a:not(.nav-cta) { padding: 16px 4px; border-bottom: 1px solid var(--line); font-size: 15px; }
  .site-nav > a:not(.nav-cta)::after { display: none; }
  .nav-cta { justify-content: space-between; margin-top: 14px; }

  .hero { grid-template-columns: 1fr; min-height: auto; }
  .hero-copy { min-height: 660px; padding-top: 90px; padding-bottom: 90px; }
  .hero-stage { min-height: 650px; border-top: 1px solid var(--line); border-left: 0; }
  .commerce-card { width: min(72%, 500px); }
  .proof-strip { grid-template-columns: 1fr; }
  .proof-strip > div { min-height: 94px; }
  .proof-strip > div + div { border-top: 1px solid var(--line); border-left: 0; }

  .capabilities { grid-template-columns: 1fr; }
  .section-intro { position: static; }
  .method-heading { grid-template-columns: 1fr; gap: 25px; }
  .method-console { margin-top: 45px; }
  .method-panel { grid-template-columns: 1fr; }
  .panel-visual { min-height: 390px; border-top: 1px solid var(--line-dark); border-left: 0; }
  .fulfillment { grid-template-columns: 1fr; }
  .fulfillment-visual { order: 2; }
  .principles-title { grid-template-columns: 1fr; gap: 15px; }
  .principle-grid { grid-template-columns: 1fr; }
  .principle-grid article { min-height: 0; padding: 30px 0; }
  .principle-grid article + article { padding-left: 0; border-top: 1px solid rgba(18,19,16,.3); border-left: 0; }
  .principle-grid h3 { margin-top: 25px; }
  .cooperation { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
  :root { --pad: 20px; --radius-lg: 24px; }
  .brand-mark { flex-basis: 34px; height: 34px; font-size: 15px; }
  .brand-name { max-width: 47vw; font-size: 12px; }
  .menu-toggle > span:first-child { position: absolute; width: 1px; height: 1px; padding: 0; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; }

  .hero-copy { min-height: 590px; padding-top: 70px; padding-bottom: 70px; }
  .hero h1 { font-size: clamp(52px, 17vw, 77px); }
  .hero-lead { margin-top: 30px; }
  .hero-actions { align-items: flex-start; flex-direction: column; gap: 24px; margin-top: 34px; }
  .hero-stage { min-height: 520px; }
  .commerce-card { width: 82%; transform: rotate(-2deg); }
  .category-card { top: 13%; right: 3%; transform: scale(.82) rotate(4deg); transform-origin: top right; }
  .order-card { bottom: 19%; left: 3%; transform: scale(.82) rotate(2deg); transform-origin: bottom left; }
  .card-columns > div, .metric-block { padding-right: 17px; padding-left: 17px; }
  .stage-caption { right: 18px; left: 18px; }

  .section-pad { padding-top: 90px; padding-bottom: 90px; }
  .section-intro h2,
  .method-heading h2,
  .fulfillment-copy h2,
  .principles-title h2,
  .cooperation h2 { font-size: clamp(40px, 12vw, 58px); }
  .capability-card { min-height: 0; padding: 27px 23px; }
  .capability-icon { margin-bottom: 34px; }

  .method { padding-right: 12px; padding-left: 12px; }
  .method-heading { padding-right: 8px; padding-left: 8px; }
  .tab-list button { justify-content: center; min-height: 58px; padding: 12px 8px; font-size: 11px; }
  .tab-list button span { display: none; }
  .panel-copy { padding: 38px 25px; }
  .panel-copy h3 { font-size: 35px; }
  .panel-visual { min-height: 320px; }
  .content-stack { padding: 28px; }
  .review-chart { padding: 35px; }
  .chart-bars { min-height: 210px; }

  .fulfillment-visual { min-height: 460px; }
  .package { width: 49%; }
  .package-back { left: 13%; }
  .package-front { left: 33%; }
  .principle-grid { margin-top: 52px; }
  .field-row { grid-template-columns: 1fr; gap: 0; }
  .brief-form { padding: 25px 20px; }
  .form-actions { flex-direction: column; }
  .form-actions .button { width: 100%; }
  .back-top { right: 14px; bottom: 14px; width: 40px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; }
  .motion-ready .reveal { opacity: 1; transform: none; }
}

@media (forced-colors: active) {
  .brand-mark, .button-primary, .principles, .panel-visual, .capability-icon { border: 1px solid ButtonText; }
}